That's all very well, but in the middle of the last decade, when the German economy was only growing very slowly, Eurozone interest rates were kept low to help the German economy to grow. This meant that the Irish and Spanish had problems with inflation, which led to real estate bubbles and banking crisis. It also led German banks to lend too much money abroad, as they were exporting well, but had fewer domestic investment opportunities.
Now the situation has turned around. Now the Eurozone periphery are crying out for a bit of inflation to help their economies, but oh no! Germany is doing quite well thankyouverymuch - and why should poor Germans have to suffer from unwanted inflation just to help other people in the Eurozone?
This is what's so infuriating about the Germans, their politicians and most of their commentators (and seemingly from opinion polls) their public. I've no problem with not wanting to bail out the Greeks. After all, Greece's crisis is Greece's own fault. But Spain and Ireland were running budget surpluses at the height of the boom. They just weren't enough to counteract the fact they had the wrong monetary policy. So they took the hit to support Germany then, where the hell is German support for them now?
And also, although the financial crisis was Greece's fault, they were given a bail-out that was piss-poorly designed by Germany, the ECB, and the Commission. The IMF technical department said it wouldn't work in 2010 - but got overruled by the French director Strauss Kahn. So actaully Germany are just as responsible for the current state of the Greek economy as the Greek government. Since they incompetently designed the Greek bail-out to get the Italians, Eastern Europeans (and Greeks) to subsidise the bail-out of their own banks. So they should fucking pay to help sort it out!
Plus, morality aside, Greece can't pay. It can probably pay half that debt back. 5 years ago, it could probably have managed two thirds. That difference is the cost of delaying the inevitable for so long. In a year's time, it'll be none. Those are the practical choices Germany has.